Perhaps you should try some spelling variations:
thuc dia » thuc dieu, thuat dia, thuc giai
thanh va » thanh van, thanh ha, thanh ve
cam thuc » am thuc, nam thuc, cam thu
cua tre » cuu tre, cua triet, dua tren
hanh va » hang va, hanh vi
sach ty » sach y, sach tu, sach thu
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
ve cam » ve cham, ve cac, va cam
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty nang xa hoi. hieu ve cam thuc dia ((thanh va) OR (hanh va)) ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty nang xa hoi. hieu ve cam thuc dia ((thanh va) OR (hanh va)) ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty nang xa hoi. hieu ve cam thuc dia ((thanh va) OR (hanh va)) ((cua tre) or (cua te))*".